Multiple Choice
Seasons on Mars last nearly twice as long as those on Earth because
A) Mars's tilt on its axis is nearly twice the angle of Earth's tilt.
B) Mars takes nearly twice as long to rotate on its axis as Earth does.
C) Mars takes nearly twice as long to orbit the Sun as Earth does.
D) Mars is nearly twice as far from the Sun as Earth is.
Correct Answer:

Verified
Correct Answer:
Verified
Q11: What role has methane played in the
Q12: Spacecraft measurements indicate that the surface of
Q13: What is the observed feature that suggests
Q14: The origin of the Martian magnetic field
Q15: The albedo, or fraction of light reflected
Q17: Earth's average density (5520 kg/m<sup>3</sup>) is slightly
Q18: In what way was the production of
Q19: How was water ice discovered near Mercury's
Q20: In what way was the production of
Q21: In which of these physical characteristics are